Multi-Axis Surface Abrader for Human-Like Wear Testing
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Solution Overview
Problem
Conventional surface abraders are limited in their ability to simulate real-life abrasion patterns, particularly on complex surfaces like mobile device keypads, as they typically use rigid tips and linear or circular motions, which cannot accurately mimic human interaction and require expensive software for random motion control.
Innovation Solution
A surface abrader that moves in multiple axes, mimicking human-like motions with a finger-tip-like device that can tilt and swivel, allowing for more precise testing of large areas and complex geometries without the need for computer programming or expensive software, using a system of pulleys and motors to achieve various abrasion patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional surface abraders use rigid tips with linear or circular motions, then the device structure is simple, but the ability to simulate real-life abrasion patterns is limited
Solution Approach 1:
The abrader tip is made dynamic by allowing it to tilt and swivel during operation, mimicking natural human finger movements. The tip can pivot on multiple axes, transitioning from a fixed rigid position to a dynamically adjustable orientation that adapts to surface contours and creates realistic abrasion patterns.
Solution Approach 2:
The invention adds rotational and tilting dimensions to the traditional linear abrasion motion. By enabling the abrader tip to rotate and tilt in addition to moving forward, the device transforms from one-dimensional linear motion to multi-dimensional motion, significantly improving its ability to simulate real-world abrasion.
2Adaptability or versatility
If conventional abraders use computer-controlled random motion, then the abrasion simulation is more realistic, but expensive programming and software are required
Solution Approach 1:
The abrader system achieves realistic random motion patterns through self-service mechanical means rather than external computer control. The mechanical linkage and pivot mechanisms naturally produce varied, realistic abrasion paths through their inherent mechanical properties, eliminating the need for expensive programming and software control systems.
Solution Approach 2:
The invention replaces the electronic/computer-controlled mechanical system with a purely mechanical system. Instead of using motors and software to control random motion, the device uses mechanical linkages, pivots, and flexible components that naturally generate realistic abrasion patterns through their physical properties.
3Adaptability or versatility
If conventional abraders use rigid downward-pointing tips, then the device structure is simple, but the motion cannot mimic human interaction
Solution Approach 1:
The abrader tip is made dynamic by allowing it to tilt and swivel during operation, mimicking natural human finger movements. The tip can pivot on multiple axes, transitioning from a fixed rigid position to a dynamically adjustable orientation that adapts to surface contours and creates realistic abrasion patterns.
Solution Approach 2:
The invention employs flexible mechanical components in the tip assembly that allow for natural movement and adaptation. These flexible elements enable the tip to conform to surface variations and move in a manner similar to human skin and tissue, enhancing the realism of the abrasion simulation.
4Area of stationary object
If conventional abraders move in straight lines or circles, then the motion control is simple, but the coverage of complex surfaces is limited
Solution Approach 1:
The invention adds rotational and tilting dimensions to the traditional linear abrasion motion. By enabling the abrader tip to rotate and tilt in addition to moving forward, the device transforms from one-dimensional linear motion to multi-dimensional motion, significantly improving its ability to simulate real-world abrasion.
Solution Approach 2:
The abrader tip is made dynamic by allowing it to tilt and swivel during operation, mimicking natural human finger movements. The tip can pivot on multiple axes, transitioning from a fixed rigid position to a dynamically adjustable orientation that adapts to surface contours and creates realistic abrasion patterns.
Data Source
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AI summary
A surface abrader 10 has a first motor M1, M2, a plurality of pulleys P1, P2, P3, P4, with at least some of the pulleys P1, P2, P3, P4 being coupled to the motor M1, M2, and a plurality of shafts S1, S2, S3, S4, with the pulleys P1, P2, P3, P4 being coupled to the shafts S1, S2, S3, S4. At least one belt BE1, BE2 is coupled between two of the pulleys P1, P2, P3, P4 to drive one shaft S1, S2, S3, S4 via rotation of the other shaft S1, S2, S3, S4 by the first motor M1, M2. A first arm A1 is coupled to one of the shafts S1, S2, S3, S4 and a second arm A2 is coupled to another of the shafts or the same shaft S1, S2, S3, S4. The arms A1, A2 move in a reciprocating motion to produce an abrasion pattern 18. An abrasion tool 16 is coupled between the first and second arms A1, A2 by at least two movable joints H1, H3 for contacting a surface to be abraded or tested for surface abrasion.